8th Grade - Cost per Unit

Calculates rates involving cost per unit to determine the best buy. SPI 0806.1.3

Links verified on 11/12/2016

American Grocery Shoppers - Consider the problem of determining a "better buy" when you are shopping for canned tomatoes. (an interesting perspective on unit cost) [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]

Applying the Unit Rate Approach - [worksheet] students record the rate appropriate for the question asked, find the corresponding unit rate, write a short sentence interpreting the unit rate, and use the rate to find a solution to the problem [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]

Tap Water - shows how much we save when we drink tap instead of bottled water

What's for Lunch? Pizza Cost Comparison - Visit the Internet Pizza Server and compare costs for different combinations of toppings and pizza sizes. You will also have the opportunity to create and "order" a pizza of your choice.